介绍了传统的消弧线圈自动调整方法。提出采用注入变频信号 ,寻找系统谐振频率 ,测量补偿度、电容电流 ,进行消弧线圈自动跟踪调谐的新方法。测量时无需调整消弧线圈挡位。能适用于老式消弧线圈补偿度的测量。在一个配电网中只需安装一台自动调整消弧线圈 ,就能实现整个配电网的自动调谐 ,无需通信配合。该技术已在现场运行多年 ,效果良好 The automatic adjustment method of arc suppression coil is introduced. A new method of injecting frequency conversion signal, searching for system resonant frequency, measuring compensation degree and capacitance current is proposed. There is no need to adjust the arc suppression coil when measuring. Can be used to measure the compensation of the old arc suppression coil. In a distribution network, only need to install an automatic adjustment of arc suppression coil, you can achieve the entire distribution network auto-tuning, without communication. The technology has been operating in the field for many years and works well